package com.mq.springcloud.service;

import cn.hutool.core.util.IdUtil;
import com.mq.springcloud.dao.PaymentDao;
import com.mq.springcloud.entity.Payment;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
import org.springframework.stereotype.Service;

import javax.annotation.Resource;
import java.util.concurrent.TimeUnit;


@Service
public class PaymentServiceImpl implements PaymentService{

    @Resource
    private PaymentDao paymentDao;

    public int create(Payment payment){
        return paymentDao.create(payment);
    }
    public Payment getPaymentById(Long id){
        return paymentDao.getPaymentById(id);
    }

    /**
     * 服务超时   正常访问的
     * @param id
     * @return
     */
    @Override
    public String paymentInfo_OK(Integer id) {
        return "线程池："+Thread.currentThread().getName()+"   paymentInfo_OK,id："+id+"\t"+"O(∩_∩)O哈哈~";
    }

    /**
     * http://localhost:8001/payment/hystrix/timeout/31
     * @HystrixCommand报异常后如何处理：
     * 一旦调用服务方法失败并抛出了错误信息后，
     * 会自动调用@HystrixCommand标注好的fallbackMethod调用类中的指定方法
     *
     * @param id
     * @return
     */
//    @HystrixCommand(fallbackMethod = "paymentInfo_TimeOutHandler",commandProperties = {
//            //设置这个线程的超时时间是3s，3s内是正常的业务逻辑，超过3s调用fallbackMethod指定的方法进行处理
//            @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds",value = "3000")
//    })
    @Override
    public String paymentInfo_Timeout(Integer id) {
        int timeNumber = 2;
        int age = 10/0;
        try{
            TimeUnit.SECONDS.sleep(timeNumber);
        }catch (InterruptedException e){
            e.printStackTrace();
        }
        return "线程池："+Thread.currentThread().getName()+"   paymentInfo_Timeout,id："+id+"\t"+"O(∩_∩)O哈哈~"+"   耗时(秒)："+timeNumber;
    }

    /**
     *  异常兜底方法
     * @param id
     * @return
     */
    @Override
    public String paymentInfo_TimeOutHandler(Integer id) {
        return "线程池："+Thread.currentThread().getName()+"   系统繁忙，请稍后再试,id："+id+"\t"+"o(╥﹏╥)o";
    }
    /**
     * 服务熔断
     */
    @HystrixCommand( fallbackMethod = "paymentCirBreaker_fallback",commandProperties = {
             @HystrixProperty(name="circuitBreaker.enabled",value ="true"),//是否开启断路器
             @HystrixProperty(name="circuitBreaker.requestVolumeThreshold",value = "10"),//请求次数
             @HystrixProperty(name="circuitBreaker.sleepWindowInMilliseconds",value = "10000"),//时间窗口期
             @HystrixProperty(name="circuitBreaker.errorThresholdPercentage",value = "60")//失败率达到多少后跳闸
    })
    public String paymentCirBreaker(Integer id){
        if(id>0){
            throw new RuntimeException("*****id 不能复数");
        }
        String simpleUUID = IdUtil.simpleUUID();
        return Thread.currentThread().getName()+"  调用成功流水号是:"+simpleUUID;
    }

    /**
     * 服务熔断异常方法
     * @param id
     * @return
     */
    public String paymentCirBreaker_fallback(Integer id){

        return Thread.currentThread().getName()+" id不能为负数";
    }

}
